Fastener for a fishing line



FIG. 1 illustrates a front perspective view of a fastener for a fishing line showing my new design;

FIG. 2 illustrates a rear perspective view of FIG. 1;

FIG. 3 illustrates a partial perspective view of FIG. 1;

FIG. 4 illustrates a front view of FIG. 1; and,

FIG. 5 illustrates a left hand side view of FIG. 2. 

The ornamental design for fastener for a fishing line, as shown. 